HOME

APPLY LATEST GOVT JOBS

hi

11. The function of a moderator in a nuclear reactor is to(A).
moderate the number of secondary neutrons
(B). moderate the velocity of secondary neutrons
(C). increase the number of fissionable nuclei
(D). control the fission reaction
12. Which planets do not have satellites revolving around them?
(A). Mars and Venus (B). Mercury and Venus
(C). Mars and Mercury (D). Neptune and Pluto
13. The absolute zero of temperature is(A).
the starting point of any scale of temperature
(B). the lowest temperature that is theoretically possible
(C). the temperature at which the vapours of all liquid substances freeze
(D). the temperature at which all substances exists in the vapour phase
14. Heavy water(A).
contains more dissolved air
(B). contains more dissolved minerals and salts
(C). contains deuterium in place of hydrogen
(D). contains organic impurities
15. Animal charcoal is obtained by(A).
the destructive distillation of bones
(B). burning the bones of animals in contact with air
(C). burning the flesh of animals
(D). burning the bones of animals out of contact with air